EP3423649A1 - Mécanisme de verrouillage avec indicateur d'état - Google Patents

Mécanisme de verrouillage avec indicateur d'état

Info

Publication number
EP3423649A1
EP3423649A1 EP17712295.9A EP17712295A EP3423649A1 EP 3423649 A1 EP3423649 A1 EP 3423649A1 EP 17712295 A EP17712295 A EP 17712295A EP 3423649 A1 EP3423649 A1 EP 3423649A1
Authority
EP
European Patent Office
Prior art keywords
cap
indicator
housing
latch mechanism
cam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17712295.9A
Other languages
German (de)
English (en)
Other versions
EP3423649B1 (fr
Inventor
Brandon V. HASTINGS
Richard B. LANGKAMP JR.
Tommy Vu Phi NGUYEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southco Inc
Original Assignee
Southco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Southco Inc filed Critical Southco Inc
Publication of EP3423649A1 publication Critical patent/EP3423649A1/fr
Application granted granted Critical
Publication of EP3423649B1 publication Critical patent/EP3423649B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B41/00—Locks with visible indication as to whether the lock is locked or unlocked
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/22—Means for operating or controlling lock or fastening device accessories, i.e. other than the fastening members, e.g. switches, indicators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/008—Locks for use with special keys or a plurality of keys ; keys therefor for simple tool-like keys
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B39/00—Locks giving indication of authorised or unauthorised unlocking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/08—Sill-buttons, garnish buttons or inner door lock knobs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
    • E05C3/041—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted
    • E05C3/042—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted the handle being at one side, the bolt at the other side or inside the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/06—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member moving otherwise than rigidly with the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C5/00—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively
    • E05C5/02—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively both moving axially and turning about their axis to secure the wing

Definitions

  • the present invention relates generally to latching devices and more particularly to latching devices for securing a first member such as a door, panel or the like in a closed position relative to a second member such as a corresponding door, panel or frame.
  • latching devices for use in securing a first closure member such as a door, panel or the like in a closed position relative to a first closure member
  • corresponding second closure member such as a door, panel or frame are known.
  • Some types incorporate a pawl or similar latching member that is actuated to engage a closure member for latching.
  • latches used to secure the door of a baggage compartment of a coach bus or a train may be inspected prior to beginning a journey. If the latch is not properly locked, the stored luggage belonging to the passengers may be inadvertently lost, if the compartment door opens while in transit, or the baggage may be stolen during the excursion, if the storage compartment is not properly secured and left unattended.
  • a latch mechanism comprising a housing, a cap, and at least one indicator.
  • the cap may include a central axis and may be mounted for selective rotational movement relative to the housing about the central axis between a latched position and an unlatched position.
  • At least one indicator may be interposed between the cap and the housing, such that the cap is covering at least a portion of at least one indicator.
  • the at least one indicator may also be mounted for radial movement outwardly from the central axis relative to the cap as the cap is rotated from the latched position to the unlatched position such that the cap is no longer in a covering relationship to the portion of at least one indicator.
  • Figure la is a side view of a latch mechanism in a latched state and a key according to an embodiment of the present invention
  • Figure lb is a side view of the latch mechanism and key in Figure la in an unlatched state
  • Figure 2a is top perspective view of the latch mechanism and key in Figure la in the latched state
  • Figure 2b is top perspective view of the latch mechanism and key in Figure la in the unlatched state
  • Figure 3a is top plan view of the latch mechanism in Figure la in the latched state
  • Figure 3b is top plan view of the latch mechanism in Figure la in the unlatched state
  • Figure 4a is a top perspective view of a cap of the latch mechanism in Figure la;
  • Figure 4b is a bottom perspective view of a cap of the latch mechanism in Figure la;
  • Figure 5a is a top perspective view of a housing of the latch mechanism in Figure la;
  • Figure 5b is a bottom perspective view of a housing of the latch mechanism in Figure la;
  • Figure 6 is a top plan view of an indicator of the latch mechanism in Figure la;
  • Figure 7a is a top plan view of two indicators and the housing of the latch mechanism in Figure la having a translucent cap and indicators;
  • Figure 7b is a side view of the top portion of the latch mechanism in Figure la having a translucent housing flange and indicators;
  • Figure 8a is a side view of a cap, housing, and indicators of the latch mechanism in Figure la;
  • Figure 8b is a cross-section of the side view of the cap, housing, and indicators in Figure 8a;
  • Figure 9a is a top plan view of the latch mechanism in Figure la in the latched state having a translucent cap, indicator, and base portion;
  • Figure 9b is a top plan view of the latch mechanism in Figure la in the unlatched state having a translucent cap, indicator, and base portion;
  • Figure 10 is top plan view of a latch mechanism in the latched state according to a second embodiment of the present invention
  • Figures 11a to 11c are top plan views of the latch mechanism of Figure 10 illustrating a cap of the latch mechanism in various angular positions
  • Figure 12a is an isometric view of a latch mechanism in the unlatched state according to a third embodiment of the present invention.
  • Figure 12b is an isometric view of the latch mechanism of Figure 12a in the latched state
  • Figure 12c is a top plan view of the latch mechanism of Figure 12a in the unlatched state
  • Figure 13 is an exploded view of a sub-assembly of the latch mechanism of Figure 12a;
  • Figure 14a is a top side isometric view of a cap of the latch mechanism in Figure
  • Figure 14b is a top plan view of the cap of Figure 14a;
  • Figure 14c is a cross-section view of the cap of Figure 14b taken along the lines 14c-14c;
  • Figure 14d is a cross-section view of the cap of Figure 14b taken along the lines 14d-14d;
  • Figure 14e is a side elevation view of the cap of Figure 14a;
  • Figure 14f is a bottom plan view of the cap of Figure 14a;
  • Figure 15a is a bottom side isometric view of a housing of the latch mechanism in Figure 12a;
  • Figure 15b is a top plan view of the housing of Figure 15a;
  • Figure 15c is a cross-section view of the housing of Figure 15b taken along the lines 15c-15c;
  • Figure 15d is a cross-section view of the housing of Figure 15b taken along the lines 15d-15d;
  • Figure 15e is a detailed view of the housing of Figure 15d;
  • Figure 15f is a detailed view of the housing of Figure 15b;
  • Figure 15g is a side elevation view of the housing of Figure 15a;
  • Figure 15h is a bottom plan view of the housing of Figure 15a;
  • Figure 16a is a top side isometric view of an indicator of the latch mechanism in Figure 12a;
  • Figure 16b is a top plan view of the indicator of Figure 16a;
  • Figure 16c is a side elevation view of the indicator of Figure 16a;
  • Figure 16d is a bottom plan view of the indicator of Figure 16a;
  • Figure 17a is a top side isometric view of an indicator decal of the latch mechanism in Figure 12a;
  • Figure 17b is a top plan view of the indicator decal of Figure 17a;
  • Figure 17c is a side elevation view of the indicator decal of Figure 17a.
  • a latch mechanism comprising a housing and a cap configured to rotate relative to one another and cause one or more indicators that may, for example, be wing- shaped to extend as the latch mechanism is unlatched.
  • the starting withdrawn position of the indicators may be closer to the central axis of the cap and/or housing when latched and extend out radially as the cap is rotated to the unlatched condition.
  • the indicators may immediately pivot or otherwise move radially outwardly and reach their fully extended position, for example, within the first five degrees of rotation of the cap, and remain in the fully extended position for the remaining rotation of the cap to the unlatched condition.
  • the indicators may extend within the first five degrees of unlocking rotation of the cap and maintain the fully extended position for the remaining 175 degrees of rotation. It is preferred to configure the latch mechanism, such that the indicators reach their fully extended position and maintain this position for as much of the rotation of the cap as possible to eliminate the impression of a 'false-locked' condition in which the indicators are withdrawn, but the latch is not fully closed.
  • the indicators may be color coded, such as a bright red color that may be generally visible at least 5 meters away, to warn an operator that the latch is not fully closed, which may be critical in transportation applications, such as on a train or moving vehicle. Springs or other biasing means are optional, but may be included in some
  • the indicator's motion may be completely controlled by the rotation of the cap or may be controlled by the housing geometry. Therefore, the indicators may pivot about an axis that is fixed relative to the cap or the housing, for example.
  • a latch mechanism 20 according to a first embodiment of the present invention is provided in combination with a driver in the form of a key 22 for actuating the latch mechanism 20 between a latched and unlatched state.
  • a driver in the form of a key 22 for actuating the latch mechanism 20 between a latched and unlatched state.
  • other driving means may be used to actuate a latch mechanism made according to the various embodiments of the present invention.
  • the driver may be a handle or knob attached to the latch mechanism.
  • the latch mechanism 20 may further comprise a cap 24 configured to receive the key 22 and a housing 26.
  • the cap 24 may, for example, be mounted for rotational movement relative to the housing 26.
  • One or more indicators 28 may be interposed between the cap 24 and housing 26 at a first end 34 of the housing 26.
  • the latch mechanism according to the present invention may be provided in the form of various types of latches, such as a simple cam latch.
  • the inner features of the latch may allow axial and/or rotational movement of the pawl.
  • the latch mechanism may be provided in the form of a cam latch, such as the latch described in U.S. Patent 6,640,592, the contents of which are incorporated herein by reference in its entirety.
  • the opposing second end 35 of the housing 26 may be provided with an opening, and a shaft 30, positioned at least in part within the housing 26, may extend through the opening.
  • the shaft 30 may be operatively connected to the cap 24.
  • a pawl 32 may be attached to an end of the shaft 30 using a fastening means, such as a screw 36.
  • the outer surface of the housing 26 may also be provided with interrupted screw threads along a portion of the outer surface thereof.
  • the screw threads on the outer surface of the housing 26 may be interrupted by two or more flats, preferably at least four flats, formed on the outer surface of the housing 26.
  • the flats formed on the outer surface of the housing 30 prevent the rotation of the housing 26 when the key 22 is used to turn the cap 24, once the latch 20 is installed in a closure member such as a door or the door's frame.
  • the interrupted threads on the outer surface of the housing 26 are engaged by a nut (not shown) to secure the latch 20 in place, once the latch 20 is installed in a closure member such as a door or the door's frame.
  • the cam latch may include a cam (not shown) having at least one cam slot.
  • the cam may be rotatably supported within the housing 26, as well as operatively connected to the cap 24, so as to rotate in response to rotation of the cap 24 from the latched condition to the unlatched condition.
  • the shaft 30 may include a cam follower located within the cam slot, which may be configured such that the shaft 30 and the pawl 32 rotate in unison and also shift axially away from the second end 35 of the housing 26 as the cap moves between the unlatched position and the latched position.
  • the one or more indicators 28 alternate between a withdrawn condition and an extended condition.
  • the indicators 28 are substantially obscured from view because the cap 24 is in a covering relationship to the indicators 28.
  • the withdrawn condition of the indicators therefore corresponds to the latched condition of the latching
  • the cap 24 includes a square-shaped male portion 38, which mates with a corresponding female portion of the key 22 having a similar square shape.
  • the male and female portions and shape of the mating portions of the cap and key may be reversed or provided in a number of shapes, e.g. triangle, hexagon, cross, etc.
  • the cap may also alternatively include a lock plug for receiving a toothed key.
  • the cap 24 has been rotated approximately 180 degrees to the unlatched condition causing the indicators 28 to extend outside of the circumference of the cap 24, such that at least a portion of the indicators 28 are no longer obscured.
  • the portion of the indicators that are no longer obscured be provided with a color that is different than the color of the cap, such that the indicators when extended are easily recognizable.
  • the portion of the indicator therefore includes a visual enhancement feature.
  • the visual enhancement feature can be a color, a light, a reflector, or any other indicator means that enhances visualization of the indicator.
  • a reflective surface is particularly beneficial at night where a coach driver or a train inspector, for example, using a flashlight can quickly observe either the presence or absence of the reflecting indicator and determine whether one or more compartments are either latched or unlatched.
  • the indicator 28 includes a base portion 48 and a colored insert 50, the colored insert 50 comprising the portion of indicator that is colored differently than the cap and is visible in the extended position.
  • Other means may by incorporated in a latch mechanism according to the present invention for allowing a user to easily recognize that at least a portion of the indicator is in the extended position.
  • that indicator may include a light, such as an LED, or a fluorescent or phosphorescent paint may be applied to at least a portion of the indicator, such that it is illuminated in the extended position.
  • the extended position in this embodiment corresponds to the unlatched condition; however, if desired, the correlation between the position of the indicators and the latched and unlatched conditions of the latching mechanism may be reversed.
  • one embodiment of the present invention may include one or more grooves 46 in the top surface of a flanged portion 44 of the housing 26.
  • the cap 24 may include a bottom surface 40 that is in opposing relationship to the top surface of the flanged portion 44 of the housing 26.
  • the indicator 28 may be interposed between the top surface and the bottom surface 40. So that the indicator rotates with the cap 24, one or more projections 42 may extend from the bottom surface 40 of the cap 24 and through a corresponding bore in one end of the indicator 28.
  • the projections may be molded into the bottom surface of the cap, i.e., integral with the cap, and in other embodiments, the projections may be provided in the form a separate pin inserted through the cap and an end of an indicator for example.
  • the side of the indicator 28 adjacent to the top surface of the housing 26 may include a peg 52 extending therefrom.
  • the peg 52 may be positioned within one of the grooves 46 in the top surface of the housing 26.
  • Some embodiments of the present invention may include a plurality of indicators, wherein each indicator has a respective groove in the top surface of the housing.
  • the latch mechanism preferably includes two indicators to provide a symmetrical design that is easy to fabricate and assemble.
  • the groove 46 includes an angled section 54.
  • the peg 52 of the indicator 28 that is positioned within the groove 46 slides along the angled section 54 causing the indicator 28 to pivot about the projection 42 of the cap 24 during rotation.
  • the indicators 28 Upon reaching the end of the angled section 54, the indicators 28 are in the fully extended position and continue to rotate with the cap 24, until the cap 24 has rotated approximately 180 degrees. It is preferred that the location of the peg is located as close as possible to the bore in the indicator to maximize the angle of rotation when the indicator pivots about the projection of the cap.
  • the configuration of the groove 46 may also be modified, for example, by changing the angle of the angled section 54, such that the transition from the withdrawn position to the extended position of the indicator is less immediate.
  • the direction of the grooves 46 may be reversed, so that the indicators extend when the cap is rotated in the clockwise direction. This would allow selection of the appropriate status indicator to be incorporated in either a left- or right-handed latch depending on the desired indications in the latched and unlatched condition and latching rotation direction of the latch mechanism. It is preferred that the height from the bottom of the flange of the housing to the top surface of the cap is as short as possible to provide a latch mechanism having a head with a small profile.
  • the peg should also be configured to have a sufficient height and thickness that is approximately the same depth and width of the groove, so that the peg remains positioned within the groove during actuation of the latch and there is no risk of the peg escaping from the groove.
  • a symmetrical design as mentioned above comprising two indicators wherein each indicator is in a respective groove may also be configured, so that the indicators extend in sync during rotation of the cap. It is preferred to include two or more indicators arranged such that the indicators extend substantially about the entire perimeter of the cap when actuated, so that the unlatched condition of the latch is easily recognized from the exposed portions of the indicators. The indicators may also extend at an angle to the central axis of the cap, such that the extended position of the indicators may be recognized from the side of the latch mechanism.
  • FIG. 10 to 11c An alternative embodiment of a latching mechanism according to the present invention is provided in Figures 10 to 11c. Similar to the first embodiment, at least one indicator 128 may be interposed between the cap 124 and the housing, such that the cap 124 is in covering relationship to the indicator 128.
  • the cap 124 may also optionally be provided with a square-shaped male portion 138 to mate with a corresponding female portion of a key for rotation of the cap 124. In the second embodiment, however, the indicator 128 does not rotate with the cap 124.
  • a projection 142 extends upwards from the top surface of the housing and through a corresponding bore in the indicator 128. The indicator 128 pivots about the projection 142 during rotation of the cap 124.
  • the cap 124 includes a radially extending pin 152 that resides in a notch 153 of the indicator 128, when the latch mechanism is in the latched condition. As the cap 124 is rotated counter-clockwise, the pin 152 rotates with the cap 124 and urges the indicator 128 to pivot about the projection 142 away from the central axis of the cap 124. The pin 152 continues to slide along a cam surface 154 of the indicator 128 to maintain the indicator in an extended position during rotation of the cap to the fully open unlatched position, preferably after about a 180 degree rotation or less.
  • the tip of the indicator 128 opposite to the bore may impinge on a portion of the cap 124 or the housing to prevent the indicator 128 from over extending.
  • the pin 152 will mate with notch 153 and a raised area 200 on the cap 124 adjacent to the pin 152 will push an end of the indicator 128 and urge the indicator 128 back to its original withdrawn position in the latched condition.
  • the latching mechanism in Figures 10 to 11c may further comprise a washer-shaped cover for the cap.
  • the cover may remain fixed during rotation of the cap and offer additional security by only exposing the central male portion 138, which may be accessed only with a driver having the appropriate shape and depth.
  • FIGs 12a to 17c Another alternative embodiment of a latching mechanism 220 according to the present invention is provided in Figures 12a to 17c. This alternative
  • At least one indicator 228 may be interposed between the cap 224 and the housing 226, such that the cap 224 is in covering relationship to the indicator 228.
  • the cap 224 may also optionally be provided with a square-shaped male portion 238 to mate with a corresponding female portion of a key for rotation of the cap 224.
  • each indicator 228 includes a projection 244 (Figure 16a) that is pivotably inserted into a corresponding bore 242 ( Figure 14f) in the bottom surface of the cap 224.
  • a projection 42 extends from the bottom surface 40 of the cap 24 and through a corresponding bore in one end of the indicator 28.
  • Each indicator 228 also includes a peg 252 (like peg 52) for that is positioned within one of the grooves 246 (like grooves 46) in the top surface 247 of the housing 226.
  • a sticker or decal 260 (Figure 17a-17c) is positioned on the top surface 251 of the indicator 228.
  • the decal 260 includes a hole 261 that is fitted over the projection 244.
  • the decal 260 is a color that is different than the color of the cap 224, such that the indicators 228 when extended are easily
  • the top surface 251 of the indicator 228 could be painted a different color than the cap 224.
  • the mechanism 220 includes a cam latch 280, similar to the latch described in U.S. Patent 6,640,592.
  • the cam latch 280 includes a cam 282, a control sleeve 284, a cam follower in the form of a shaft 286 (like shaft 30), a cross-pin 288, and a spring 290.
  • the cam 282 includes prongs 283 extending from the top end that are engaged with slots on the bottom side of the cap 224, such that the cam 282 rotates along with the cap 224.
  • the cam 282 also includes one or more cam slots 285 defined on the revolved exterior surface.
  • the control sleeve 284 includes prongs 291 extending from the bottom end that are engaged with slots 293 ( Figure 15d) on the bottom interior side of the housing 226, such that the control sleeve 284 remains rotationally fixed with the housing 226.
  • the control sleeve 284 also includes one or more slots 287 defined on the revolved exterior surface. Each slot 287 includes an axially extending slot portion 287a and a circumferentially-extending slot portion 287b.
  • the cross-pin 288 is fitted through a cross-wise hole in the shaft 286, the slot(s) 287 of the control sleeve 284, and the cam slot(s) 285 of the cam 282.
  • the free ends of the cross-pin 288 are positioned in a circumferential recess 289 ( Figure 15e) formed on the interior surface of the housing 226.
  • the spring 290 is configured to bias the cam 282, as well as the cam latch 280, toward the unlatched state.
  • the cap 224 When in the latched position, the cap 224 is at its fully clockwise position, and the two opposite ends of cross pin 288 are positioned through the axial slot portions 287a of the motion-control sleeve 284, near the ends of the axial slot portions 287a.
  • the projecting portions of the cross pin 288 are positioned nearest to the ends of the cam slots 285 which are closest to the proximal end (i.e., the end closest to the cap 224) of the cam 282.
  • the pitch of each of the cam slots 285 is such that the axial distance, i.e.
  • the distance measured in a direction parallel to the longitudinal axis of the cam 282, between a location along the cam slot 285 and the proximal end of the cam 282 increases in the clockwise direction, beginning at the end of the cam slot nearest the proximal end of the cam 282.
  • cap 224 is turned in a counterclockwise direction.
  • cap 224 and cam 282 rotate as a unit.
  • the cross pin 288 cannot move rotationally because its opposite ends are within the axial slot portions 287a of the stationary motion-control sleeve 284.
  • pin 288, and hence also shaft 286 and the pawl 299 will move away from the top end 247 of the housing 226 in a direction parallel to the longitudinal axis of the shaft 286.
  • cross pin 288 has moved axially away from the proximal end of the motion control sleeve 284, and is now aligned with the opposed circumferential slot portions 287b. Further rotation of cap 224 and cam 282 now causes rotational movement of cross pin 288, shaft 286 and pawl 299, as the ends of pin 288 move along the opposed circumferential slot portions 287b. In this manner, pawl 299 is moved out of alignment with the door frame, and after approximately 60 degrees of rotation, the closure member or door is fully unlatched from the door frame. The cap 224 has now been rotated approximately 180° (for example) relative to its fully latched position.
  • the latching action is simply the reverse of the unlatching action just described.
  • cap 224 is turned clockwise, the opposite ends of cross pin 288 move in the clockwise direction along the circumferencial slot portions 287b and the shaft 286 rotates in the clockwise direction about its longitudinal axis.
  • the cross pin 288 translates axially toward the proximal end of the motion control sleeve 284, when the cross pin 288 reaches the axial slot portions 287a.
  • These sequential motions are caused by the walls of the cam slots 285, which urge the ends of the cross pin 288 along the circumferential slot portions 287b in the clockwise direction, until the ends of the cross pin 288 abut against the edge of the axial slot portions 287a.
  • cam 282 and the motion-control sleeve 284 cooperatively cause the rotational and axial motions of the shaft 286 to take place in sequence, in response to the rotational motion of the cap 224 in the latching or clockwise direction, in one continuous motion.
  • latching mechanisms 20 and 220 are not limited to the cam latch 280 that is shown and described herein.
  • the indicators, caps and housings described herein may be utilized with other latch styles.
  • the indicator(s) may be used with an adjustable grip latch having an externally threaded rod, which is disclosed, for example, in U.S. Patent Nos.
  • the indicator(s) described herein may be used with a minimal protrusion fixed grip latch having an internally threaded shaft, which is disclosed, for example, in PCT Patent Application Pub. No. WO/2017/011443, which is also incorporated by reference herein in its entirety.
  • the indicator(s) described herein may be used with non-compression cam latch (non-pull-up), which is disclosed, for example, in U.S. Patent No. 8,336,931, which is incorporated by reference herein in its entirety.
  • the pawl pivots between latched and unlatched positions without translating.
  • the components of the latch mechanism are preferably comprised of metal and metal alloy materials, however, other suitable materials can also be used where desired, such as plastic, aluminum, or zinc.
  • the closure member can be comprised of any suitable materials, such as wood or metal, and can be of varying thickness.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un mécanisme de verrouillage qui comprend un logement, un capuchon et au moins un indicateur. Le capuchon peut comprendre un axe central et peut être monté pour permettre le déplacement rotatif sélectif relativement au logement autour de l'axe central entre une position verrouillée et une position déverrouillée. L'au moins un indicateur peut être intercalé entre le capuchon et le logement, de sorte que le capuchon est en relation de recouvrement sur au moins une partie de l'au moins un indicateur. L'au moins un indicateur peut également être monté pour permettre le déplacement axial vers l'extérieur à partir de l'axe central relativement au capuchon lorsque le capuchon est entraîné en rotation de la position verrouillée à la position déverrouillée de sorte que le capuchon n'est plus en relation de recouvrement sur la partie de l'au moins un indicateur.
EP17712295.9A 2016-03-03 2017-03-03 Mechanism de loqueteau avec indicateur d'état Active EP3423649B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662303112P 2016-03-03 2016-03-03
PCT/US2017/020668 WO2017124121A1 (fr) 2016-03-03 2017-03-03 Mécanisme de verrouillage avec indicateur d'état

Publications (2)

Publication Number Publication Date
EP3423649A1 true EP3423649A1 (fr) 2019-01-09
EP3423649B1 EP3423649B1 (fr) 2021-11-10

Family

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EP17712295.9A Active EP3423649B1 (fr) 2016-03-03 2017-03-03 Mechanism de loqueteau avec indicateur d'état

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US (1) US10329799B2 (fr)
EP (1) EP3423649B1 (fr)
JP (1) JP7032318B2 (fr)
KR (1) KR102320197B1 (fr)
CN (1) CN107407105B (fr)
BR (1) BR112018017094B1 (fr)
DE (1) DE202017003394U1 (fr)
ES (1) ES2906234T3 (fr)
WO (1) WO2017124121A1 (fr)

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US10947755B2 (en) * 2016-03-03 2021-03-16 Southco, Inc. Latch mechanism with status indicator
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CN208181396U (zh) * 2018-04-24 2018-12-04 深圳市大疆创新科技有限公司 无人机
CN108716348A (zh) * 2018-08-06 2018-10-30 卢志佳 一种绳吊式上下滑动推拉窗
US20220282535A1 (en) * 2019-08-13 2022-09-08 Ron Zeitler Quarter turn twist lock door latch
WO2021100987A1 (fr) * 2019-11-18 2021-05-27 아사아블로이코리아 주식회사 Verrou de porte de type indicateur
CN111593971B (zh) * 2020-04-09 2021-11-23 浙江中车电车有限公司 一种具有警示功能的锁具
KR200495831Y1 (ko) * 2021-03-11 2022-08-30 아사아블로이코리아 주식회사 도어 손잡이의 잠금핀 조립체
CN113882758A (zh) * 2021-10-25 2022-01-04 温州一卡锁具科技有限公司 带状态指示功能的锁机构

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Publication number Publication date
WO2017124121A1 (fr) 2017-07-20
KR20180118769A (ko) 2018-10-31
JP2019510901A (ja) 2019-04-18
ES2906234T3 (es) 2022-04-13
EP3423649B1 (fr) 2021-11-10
CN107407105B (zh) 2020-11-03
US20170306651A1 (en) 2017-10-26
KR102320197B1 (ko) 2021-11-01
BR112018017094A2 (pt) 2019-01-02
DE202017003394U1 (de) 2018-01-11
BR112018017094B1 (pt) 2023-01-17
JP7032318B2 (ja) 2022-03-08
CN107407105A (zh) 2017-11-28
US10329799B2 (en) 2019-06-25

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